•
An 800 Enhanced Core Processor version 4.4 and later
•
HART with HART 7 enabled in order to view process variables over HART (default)
Restriction
PVR, TBR, and TMR process variables are available only over HART with HART 7 enabled
(default). PVR, TBR, and TMR parameters cannot be configured with HART.
11.3.1
PVR, TBR, and TMR applications
PVR, TBR, and TMR are applications designed to provide more accurate process data in the
presence of multiple phases. For example, if bubbles are present in the process fluid, or the
process fluid is flashing, the volume measurements are often incorrect.
Production Volume Reconciliation (PVR)
•
Provides oil and water volumes through density-based calculations for both line and
reference conditions
•
Detects bubble entrainment or flashing in the sensor, and can correct volumes
accordingly
•
Best for undersized three-phase separators that frequently have intermittent gas or
water contamination in the oil leg
•
Offers a simple, low-cost solution for net oil and net water measurement for two-
phase separators
Transient Bubble Remediation (TBR)
•
Used with single-component liquid streams that may experience intermittent low
levels of gas entrainment, that is, gas carryunder
•
Enables accurate measurement of a single fluid during periods of entrained gas by
providing a substitute density value based on the immediately preceding process
density (standard configuration)
•
Tracks total time of aerated flow to assist in diagnosing process issues that may
cause aeration
Transient Mist Remediation (TMR)
•
Used with gas streams that may experience intermittent low levels of liquid
entrainment, i.e., liquid carry-over
•
Allows gas measurement to continue during periods of entrained liquid (mist) by
providing a substitute flow rate value based on the immediately preceding process
flow rate
•
Returns to reporting the measured flow rate when the mist interval is over,
increased or decreased by a maximum of 10%, until flow totals are appropriately
adjusted for the unmeasured flow
•
Provides an indication of the amount of time that liquid was present in the stream —
identifying process improvements to reduce gas stream contamination
Measurement support
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Micro Motion Model 2500 Transmitters with Configurable Input/Outputs
Summary of Contents for Micro Motion 2500
Page 8: ...Contents vi Micro Motion Model 2500 Transmitters with Configurable Input Outputs ...
Page 10: ...Getting started 2 Micro Motion Model 2500 Transmitters with Configurable Input Outputs ...
Page 18: ...Quick start 10 Micro Motion Model 2500 Transmitters with Configurable Input Outputs ...
Page 237: ...NE 53 history Configuration and Use Manual 229 ...